Calendar sheet



FIG. 1 is a plan view of the calendar sheet showing my new design comprising a Julian and Gregorian calendar; and,

FIG. 2 is an enlarged section view of the bottom portion of the calendar sheet depicted in FIG. 1.

The rear of the calendar sheet is flat and plain and the sheet is of conventional thickness. Any shading in the Figures indicates color contrasts. 

The ornamental design for a calendar sheet, as shown and described. 